What is CVE-2021-1731?

CVE-2021-1731 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. PFX Encryption Security Feature Bypass Vulnerability

Which CVE IDs does CVE-2021-1731 cover?

CVE-2021-1731 covers the following CVE IDs: CVE-2021-1731. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2021-1731?

CVE-2021-1731 has a CVSS v3 base score of 5.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2021-1731?

CVE-2021-1731 affects 19 products, including: Windows 10 Version 1803 for 32-bit Systems; Windows 10 Version 1803 for ARM64-based Systems; Windows 10 Version 1803 for x64-based Systems; Windows 10 Version 1809 for 32-bit Systems; Windows 10 Version 1809 for ARM64-based Systems; and others — see the full list on the advisory page.

CVE-2021-1731HighCVSS 5.5

PFX Encryption Security Feature Bypass Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

February 9, 2021

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2021-1731 →

📋 Description

What kind of security feature could be bypassed by successfully exploiting this vulnerability? When exporting a SID-protected PFX file, keys encrypted using AES are not properly protected. Any SID-protected PFX files using AES for key encryption should be regenerated and exported after this update is installed.

🎯 Affected products19

Windows 10 Version 1803 for 32-bit Systems
Windows 10 Version 1803 for ARM64-based Systems
Windows 10 Version 1803 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1909 for 32-bit Systems
Windows 10 Version 1909 for ARM64-based Systems
Windows 10 Version 1909 for x64-based Systems
Windows 10 Version 2004 for 32-bit Systems
Windows 10 Version 2004 for ARM64-based Systems
Windows 10 Version 2004 for x64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows 10 Version 20H2 for ARM64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server, version 1909 (Server Core installation)
Windows Server, version 2004 (Server Core installation)
Windows Server, version 20H2 (Server Core Installation)

✅ Remediation

KB4601319 (Security Update) KB4601354 (Security Update) KB4601345 (Security Update) KB4601315 (Security Update)

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products19

✅ Remediation

🔗 References (8)